LFXTAL003156B

Overview

The LFXTAL003156B is a parallel fundamental quartz crystal manufactured by IQD Frequency Products. It operates at a nominal frequency of 8 MHz with a frequency tolerance of ±30 ppm and initial frequency stability of ±50 ppm. The component features a load capacitance of 30 pF and a series resistance of 40 Ω. Designed for through-hole mounting, it utilizes the HC-49/4H package with dimensions of 11.05 mm length, 4.7 mm width, and 4.1 mm height. The unit supports an operating temperature range from -20 °C to +70 °C and complies with RoHS and REACH standards.

Feature Summary

• Hermetically sealed in an inert atmosphere using glass-to-metal seals on leads for environmental protection
• Resistance welded construction ensures long-term reliability and structural integrity
• Industry-standard leaded package design facilitates easy integration into traditional circuit layouts

Applications

• General-purpose timing circuits requiring stable reference frequencies
• Microcontroller clock generation systems
• Industrial control equipment operating within standard temperature ranges
• Consumer electronics utilizing through-hole assembly processes

Procurement Notes

Verify that the specific order matches the LFXTAL003156B part number exactly, as suffixes may indicate different packaging or tolerances. Confirm compliance requirements such as RoHS and REACH status are met for your region. Ensure the HC-49/4H package dimensions align with your PCB footprint and assembly capabilities. Check that the 30 pF load capacitance matches the oscillator circuit design specifications to maintain accurate frequency performance.

Selection Notes

Select this component when a through-mount solution is required for 8 MHz applications. The HC-49/4H package offers robust mechanical stability compared to surface-mount alternatives. Consider the ±30 ppm tolerance if higher precision is not critical. Verify that the 40 Ω series resistance is compatible with the driving circuit's power requirements. This part is suitable for environments where thermal stress is moderate and hermetic sealing provides necessary protection against moisture.

Part Context

This crystal belongs to IQD Frequency Products' standard quartz crystal lineup, which includes various fundamental and overtone modes. The HC-49/4H series is widely recognized for its durability and consistent performance in general electronic applications. IQD manufactures these components with resistance-welded technology to ensure hermetic sealing, distinguishing them from non-sealed alternatives. The product line caters to both industrial and consumer markets requiring reliable frequency control.

Replacement Considerations

Direct substitutes must match the 8 MHz frequency, 30 pF load capacitance, and HC-49/4H package. Verify that alternative crystals offer comparable series resistance and frequency tolerance. Ensure replacement parts maintain the same operating temperature range and hermetic sealing characteristics. Cross-reference pin compatibility and physical dimensions to guarantee proper fit on existing PCBs.